High-voltage battery charging system and charger with such charging system
a charging system and high-voltage battery technology, applied in charging stations, electric vehicle charging technology, transportation and packaging, etc., can solve the problems of depletion of world's oil supply, pollution of the air by waste gases, carbon dioxide, etc., and achieve the effect of high charging voltage and enhanced reliability of the high-voltage battery charging system
Inactive Publication Date: 2013-04-11
DELTA ELECTRONICS INC
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[0009]The present invention provides a high-voltage battery charging system for use in an electric vehicle and also a charger with such a high-voltage battery charging system, in which a wide range of a high charging voltage is provided to charge the high-voltage battery unit. Even if the AC input voltage recei...
Problems solved by technology
The waste gases may pollute the air.
In addition, carbon dioxide is considered to be a major cause of the enhanced greenhouse effect.
It is estimated that the world's oils supply would be depleted in the next several decades.
The oil depletion may lead to global economic crisis.
Since the bus capacitor with the high rated voltage value is difficultly available and costly, it is not easy to widen the range of the high charging voltage.
If the input voltage received by the power factor correction circui...
Method used
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[0017]The present invention will now be described more specifically with reference to the following embodiments. It is to be noted that the following descriptions of preferred embodiments of this invention are presented herein for purpose of illustration and description only. It is not intended to be exhaustive or to be limited to the precise form disclosed.
[0018]FIG. 1 is a schematic circuit block diagram illustrating the architecture of a high-voltage battery charging system according to an embodiment of the present invention. The high-voltage battery charging system is applied to and installed in an electric vehicle body 1. The high-voltage battery charging system is used for receiving electric energy of an AC input voltage Vin from an utility power source, and charging a high-voltage battery unit 2. As shown in FIG. 1, the high-voltage battery charging system comprises a rectifier circuit 3, a power factor correction circuit 4, an intermediate non-isolated DC-DC converting circu...
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A high-voltage battery charging system includes a rectifier circuit, a power factor correction circuit, a bus capacitor, an intermediate non-isolated DC-DC converting circuit, an intermediate output capacitor, and a non-isolated DC-DC converting circuit. The rectifier circuit is used for rectifying an AC input voltage into a rectified voltage. The power factor correction circuit is used for increasing a power factor of the rectified voltage and generating a bus voltage. The bus capacitor is used for energy storage and voltage stabilization. The intermediate non-isolated DC-DC converting circuit is used for boosting the bus voltage into an intermediate output voltage. The intermediate output capacitor is connected between an output terminal of the intermediate non-isolated DC-DC converting circuit and the common terminal COM for energy storage and voltage stabilization. The non-isolated DC-DC converting circuit is used for converting the intermediate output voltage into a high charging voltage, thereby charging the high-voltage battery unit.
Description
FIELD OF THE INVENTION[0001]The present invention relates to a high-voltage battery charging system, and more particularly to a high-voltage battery charging system for use in an electric vehicle. The present invention relates to a charger with such a high-voltage battery charging system.BACKGROUND OF THE INVENTION[0002]Fossil fuels such as petroleum and coal are widely used in automobiles or power plants for generating motive force or electrical power. As known, burning fossil fuels produces waste gases and carbon oxide. The waste gases may pollute the air. In addition, carbon dioxide is considered to be a major cause of the enhanced greenhouse effect. It is estimated that the world's oils supply would be depleted in the next several decades. The oil depletion may lead to global economic crisis.[0003]Consequently, there are growing demands on clean and renewable energy. Recently, electric vehicles and plug-in hybrid electric vehicles have been researched and developed. Electric veh...
Claims
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Patent Timeline
Login to view more IPC IPC(8): H02J7/00H02J7/02
CPCB60L11/1811H02M1/4225H02M3/1582B60L2210/30H02M2001/007Y02T10/92Y02T10/7241Y02T90/14Y02T90/127H02J2007/10H02J7/022Y02T10/7005Y02T10/7072B60L53/20H02J7/02H02J2207/20Y02T10/72Y02T10/70H02M1/007Y02T90/12
Inventor CHEN, CHIN-HOUTANG, BO-WENCHO, MENG-FU
Owner DELTA ELECTRONICS INC
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